Precipitation of tin(IV), lead (II), and arsenic (III) sulfides from hydroc
hloric solutions saturated with calcium and sodium chlorides is studied. Ex
perimental data on the SnS2, PbS and As2S3 solubilities in concentrated chl
oride solutions at 25 degreesC and partial hydrogen sulfide pressure of 1 a
tm are obtained. Conditions for the most complete separation of the metal s
ulfides in chloride solutions with a low concentration of hydrochloric acid
are determined.